Table 2.

Performance of breast region segmentation by U-Net++ on 5-fold cross validation.

Performance	Exp 1	Exp 2	Exp 3	Exp 4	Exp 5	Average
DSC	0.959	0.960	0.945	0.948	0.942	0.951
Jaccard	0.921	0.924	0.897	0.904	0.894	0.908
Segmentation sensitivity	0.957	0.964	0.940	0.953	0.927	0.948